The universe doesn't allow perfection.
生活就像一盒巧克力,你永远不知道下一颗是什么味道。
The man who removes a mountain begins by carrying away small stones.
My mind is my weapon. My brother has his sword, King Robert has his warhammer, and I have my mind... And a mind needs books as a sword needs a whetstone, if it is to keep its edge.
The goal is not just to design a market, but to design one that works well in practice.